4MA0 Higher June 2013 Paper 4R Q11

EdexcelHigherOld spec2 marksProperties of Numbers

11 \(A = 2^3 \times 3^2 \times 5^4\)
\(B = 3^5 \times 5 \times 7^3\)

Find the Highest Common Factor (HCF) of \(A\) and \(B\).

(2)

Scheme	Marks
Product of positive integer powers of both 3 and 5 only	M1
\(3^2 \times 5\) or 45	A1
	(2)