A prime number is a number with two and only two factors: 1 (also known as unity) and itself. A composite number is a number with more than two factors; in other words, it has at least one factor besides 1 and itself. 391 has factors other than 1 and itself, so it is not a prime number. For example, it is divisible by 17. Therefore, 391 is a composite number.
The factors of 391 are: 1 17 23 391 The prime factors are: 17 x 23
241, 341, 391, 541 and a lot more...
391
400
391 is a composite number. 391 = 17 * 23 A prime number is a whole number that only has two factors which are itself and one. A composite number has factors in addition to one and itself.
A prime number is a number with two and only two factors: 1 (also known as unity) and itself. A composite number is a number with more than two factors; in other words, it has at least one factor besides 1 and itself. 391 has factors other than 1 and itself, so it is not a prime number. For example, it is divisible by 17. Therefore, 391 is a composite number.
The factors of 391 are: 1 17 23 391 The prime factors are: 17 x 23
17 x 23 = 391
The prime factors are: 17, 23
241, 341, 391, 541 and a lot more...
100 + 391 = 491
391
391 A number and its additive inverse must equal zero.
Answer: GCF of 119 and 391 is 17. One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 119 are 1, 7, 17, and 119. The factors of 391 are 1, 17, 23, and 391 The common factors are 1 and 17. Therefore, the greatest common factor is 17. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 119 are 7 and 17. The prime factors of 391 are 17 and 23. The prime factors in common are a single 17, so the greatest common factor is 17. Once you determine that there are only two prime factors for 119, the easiest way to determine the greatest common factor is to check whether 391 is evenly divided by either 17 or 7, rather than determining the prime factors of 391, too.
782
782 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 8 factors of 782 are 1, 2, 17, 23, 34, 46, 391, and 782.The factor pairs of 782 are 1 x 782, 2 x 391, 17 x 46, and 23 x 34.The proper factors of 782 are 1, 2, 17, 23, 34, 46, and 391 or,if the definition you are using excludes 1, they are 2, 17, 23, 34, 46, and 391.The prime factors of 782 are 2, 17, and 23.The distinct prime factors of 782 are, since there is no repetition of prime factors, also 2, 17, and 23.The prime factorization of 782 are 2 x 17 x 23.