Write down 56 as the product of its prime factors.
56 / 2 = 2828 / 2 = 1414 / 2 = 77 / 7 = 1so, 56 = 2x2x2x7 = 23x7Example of a non calculator GCSE paper question, higher tier
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Related Maths GCSE answers
All answers ▸Solve the simultaneous equations “x^2+y^2=4” and “x=2-y”. What does this tell us about the circle centred on the origin, with radius 2, and the straight line with y-intercept 2 and gradient -1?
Solve for x, 4x+3.5 = 1
5y + 1 = 3y + 13
If we take a number and square it, the answer is also the product of the two numbers either side of it plus one. Prove algebraically that this works for all numbers.