To find the factor of 1764 that totals the sum of 84, we need to find two numbers that multiply to 1764 and add up to 84. The factors of 1764 are 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, and 1764. The two numbers that meet the criteria are 42 and 42, as 42 * 42 = 1764 and 42 + 42 = 84.
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63 and 21
42 and 42
three twenty-eights
four twenty-ones
six fourteens
seven twelves
twelve sevens
fourteen sixes
twenty-one fours
twenty-eight threes
forty-two twos
eighty-four ones
I suppose you could use -42 twice. -63 and -21
1764
The factor pairs of 84 are (84,1)(42,2)(28,3)(21,4)(14,6)(12,7) None of them add up to 17. If that was -84, you could use 21 and -4.
Yes, 6 is a factor of 84.
Since 6 is a factor of 84, it is automatically the GCF of 6 and 84.