84
249 ÷ 84 = 2.96 or 2 times with a remainder of 81.
The LCM is 2268.
3x-84 = -81
83
He was 84
81: 1, 3, 9, 27, 81 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
81 84 87
No, 9 is not a factor of 84.
400 - 78 - 22 --84 - 16 - 81 - 19 - 27 = 400 - 78 - 22 + 84 - 16 - 81 - 19 - 27 = 241
For 98 78 86 88 84 81 93 92 89 and 81: σ=6.2361
The GCF is 3.