Keyword Analysis & Research: what are natural numbers called

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what are natural numbers called	0.32	0.1	7986	94	31
what	1.24	0.3	4789	60	4
are	1.09	0.3	1623	55	3
natural	0.46	0.3	6201	81	7
numbers	0.16	0.5	4676	81	7
called	0.28	0.1	2425	78	6

Keyword	CPC	PCC	Volume	Score
what are natural numbers called	0.03	0.8	9428	90