You don't. You need at least two numbers to find a GCF.
the answer is 49
70
The highest common factor of the numbers 490 and 630 is 70.
Oh, dude, the Highest Common Factor (HCF) of 490 and 1050 is 70. It's like the cool kid that hangs out with both 490 and 1050 without any drama. So, yeah, 70 is the number that divides both 490 and 1050 without leaving any remainder.
HCF(140, 490) = 70 So 70 and any factor of 70 will do.
hcf(490, 1750) = 70 Using factorisation: 490 = 2 x 5 x 7² 1750 = 2 x 5³ x 7 hcf = 2 x 5 x 7 = 70
Oh, dude, the highest common factor of 490 and 700 is 70. It's like the biggest number that can divide both of them without leaving a remainder. So, yeah, 70 is the winner here.
490 = 490
490
90% of 490 = 90% * 490 = 0.9 * 490 = 441
25% of 490= 25% * 490= 0.25 * 490= 122.5
Factor them both. 2 x 5 x 7 x 7 = 490 2 x 2 x 2 x 5 x 7 + 280 Find the factors in common. 2 x 5 x 7 = 70, the HCF