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27 lines
537 B
R
27 lines
537 B
R
5 years ago
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Check Prime Number
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# Program to check if
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# the input number is
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# prime or not
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# take input from the user
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num = as.integer(readline(prompt="Enter a number: "))
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flag = 0
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# prime numbers are greater than 1
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if(num > 1) {
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# check for factors
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flag = 1
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for(i in 2:(num-1)) {
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if ((num %% i) == 0) {
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flag = 0
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break
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}
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}
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}
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if(num == 2) flag = 1
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if(flag == 1) {
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print(paste(num,"is a prime number"))
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} else {
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print(paste(num,"is not a prime number"))
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}
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