39 = 3 x 13
No, 39 is not prime.
To find the GCF of 13 and 39, you can list the factors of each number. The factors of 13 are 1, 13. The factors of 39 are 1, 3, 13, 39. 13 is the GCF of 13 and 39. 3 is a prime number has only two factors: 1 and 13. 13 will divide into 39 three times. Since 13 is a prime number that will divide into 39, it has to be the GCF of 13 and 39.
Yes, 390 is a composite number. It has factors other than 1 and 390. The factors of 390 are 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, and 390.
A composite number is a positive integer which has a positive divisor other than one or itself. In other words, if n > 0 is an integer and there are integers 1 < a, b < n such that n = a × b, then n is composite. By definition, every integer greater than one is either a prime number or a composite number. The number one is a unit - it is neither prime nor composite. For example, the integer 14 is a composite number because it can be factored as 2 × 7. Likewise, the integers 2 and 3 are not composite numbers because each of them can only be divided by one and itself.The first 105 composite numbers are:4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100, 102, 104, 105, 106, 108, 110, 111, 112, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 128, 129, 130, 132, 133, 134, 135, 136, 138, 140.
The factors of 117 are 1,3,9,13,39,and 117The factors of 117 are 1, 3, 9, 13, 39, and 117.1,3,9,13,39,and 1171x117;3x39;9x13To find the factors of a number, it is helpful to know the rules for checking if something is a divisor. One rule is that if a numbers digits add up to 9, the number divides by 9. In this case, 117 has digits which add up to 9, and so can be divided by 9. If we do this, we get 13, which is prime. Thus the prime factors are 3, 3 and 13. These can be combined to get the other factors. Therefore the factors of 117 are 1, 3, 9, 13, 39 and 117.
The number 39 is composite because it has more factors than 1 and itself. The factors of 39 are 1, 3, 13, and 39.
39 is a composite number since it has more than two factors. 1 x 39 = 39 3 x 13 = 39 This means the number 39 has 4 factors; 1, 3, 13, 39 Any number with more than two factors is a composite number, otherwise it is a prime number.
39 is composite because its factors are:1x393x13(1, 3, 13, 39)39 is a composite number because it has other factors aside from 1 and itself.The other factors of 39 are 3 and 13.
39 is a composite number because it has other factors aside from 1 and itself. The other factors of 39 are 3 and 13. 1 is neither prime nor composite.
39 would be a composite number because not only does it have 1 as a factor but it has 13 and 3 because 13*3 39 is a composite number. Other than itself and 1, its other positive integer factors are 3 and 13.
39 is composite... --------------------- A prime number is a whole number greater than 1, whose only two whole-number factors are 1 and itself.
39 is a composite number because it has more than two factors
39 is composite
39 is a composite number because it has more than two factors
39 is a Composite Number.
39 is not a prime; it is a composite number.
A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 39 is composite.