Q: Is 138 a prime or composite?

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138 is not prime. 138 = 2 * 3 * 23

4, composite. 67, prime.

The factors of 138 are 1, 2, 3, 6, 23, 46, 69, and 138.

Prime

1 is special 2 prime 3 prime 4 composite 5 prime 6 composite 7 prime 8 composite 9 composite 10 composite 11 prime 12 composite ext.

Related questions

Composite since it ends in an even number it will always be divisible by 2

1, 2, 3, 6, 23, 46, 69, 138 2, 3 and 23 are prime. 1 is neither. The rest are composite.

138 is a composite number. This is because composite numbers are any number that has more than two factors(one and itself). Therefore, since 2, 3, and 6 among others are factors of 138 that makes it a composite number.

138 is not prime. 138 = 2 * 3 * 23

138 is a composite number because it has factors other than 1 and itself. It is not a prime number. The 8 factors of 138 are 1, 2, 3, 6, 23, 46, 69, and 138. The prime factors of 138 are 2, 3, and 23. The prime factorization of 138 is 2 x 3 x 23. NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common.

neither prime or composite

It is prime

It would be impossible to list them all, since numbers go on forever, but here are some of them: 2 - Prime 3 - Prime 4 - Composite 5 - Prime 6 - Composite 7 - Prime 8 - Composite 9 - Composite 10 - Composite 11 - Prime 12 - Composite 13 - Prime 14 - Composite 15 - Composite 16 - Composite 17 - Prime 18 - Composite 19 - Prime 20 - Composite 21 - Composite 22 - Composite 23 - Prime 24 - Composite 25 - Composite 26 - Composite 27 - Composite 28 - Composite 29 - Prime 30 - Composite 31 - Prime 32 - Composite 33 - Composite 34 - Composite 35 - Composite 36 - Composite 37 - Prime 38 - Composite 39 - Composite 40 - Composite 41 - Prime 42 - Composite 43 - Prime 44 - Composite 45 - Composite 46 - Composite 47 - Prime 48 - Composite 49 - Composite 50 - Composite

4, composite. 67, prime.

Prime

The factors of 138 are 1, 2, 3, 6, 23, 46, 69, and 138.

1 is special 2 prime 3 prime 4 composite 5 prime 6 composite 7 prime 8 composite 9 composite 10 composite 11 prime 12 composite ext.