The term common factors specifically refers to the factors shared by two or more numbers. Since 780 is a single number, you could say that it shares all of its factors with itself.
The factors of 780 are: 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, and 780.
1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
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780 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 24 factors of 780 are 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, and 780.The proper factors of 780 are 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, and 390 or,if the definition you are using excludes 1, they are 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, and 390.The prime factors of 780 are 2, 2, 3, 5, and 13. Note: There is repetition of these factors, so if the prime factors are being listed instead of the prime factorization, usually only the distinct prime factors are listed.The 4 distinct prime factors (listing each prime factor only once) of 780 are 2, 3, 5, and 13.The prime factorization of 780 is 2 x 2 x 3 x 5 x 13 or, in index form (in other words, using exponents), 22 x 3 x 5 x 13.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.
The divisors of 780 are 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, and 780. The prime factorization of 780 is 2x2x3x5x13, and the four different prime factors of 780 are 2, 3, 5, and 13.
The GCF is 15.
35% of 780= 35% * 780= 0.35 * 780= 273
780